How do you know everythings going to be ok??

The biggest question i have in my life right now is "how do i know everythings going to be ok?"

i put this up as a facebook status and people commented on it and they said... (btw some swear so just so u know its not from me)

"You know because it always, without fail, turns out exactly how it's meant to. And that's ok."-Taylore H.

"you don't know how its going to turn out but always remember that everything happens for a reason and eventhough that situation may suck and hurt like hell, it teaches you something that was meant for a bigger purpose" -Cassy B.

"you don't know that it's going to get better anymore then you know if it is going to be raining in three weeks. All you can know is that it is out of your hands, whats done is done, and you need to just take things as they come the very best you can." -Pam S.

As i read these over and over again from very smart gals i think there all right but i still cant come to think that its all true. i mean the one from cassy is my one. bc its stright forward and very true. but idk its hard to think that everythings going to be ok. i wish i had a magic crystal ball that saw into the future to see if everythings ok. but i dont have that power. so i have to put my trust in god which leads me to my last post...

So i guess i need to trust god more...